1.
There is an important type of rock that is not pictured. It is called marble.
Find out what it looks like - draw a picture of it.
What do we use it for?
Why do we use it for those things?
You could find out from books, the Internet or a CD ROM.
2.
Describe each of the rocks in the pictures.
You could write about the colour, the smoothness and the size of the particles.
Which of the rocks do you think is the roughest?
Which do you think is the smoothest?
Which is the lightest in colour and the darkest in colour?
Which do you think is the hardest rock?
How could you find out which of two rocks is the hardest?
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